Run a Windows Service as a console app

Question

I want to debug a Windows service but it pops an error message saying

Cannot start service from the command line or a debugger. A windows service must be installed using installutil.exe and then started with the Server explorer, windows services Administrative tools or the NET start command.

I don't really have any idea about this error.....

Answer 1

Before a Windows Service can run, it has to be "installed" first using installutil. EG:

C:\installutil -i c:\path\to\project\debug\service.exe 

Then you can open up the list of Services to start it. EG:

1. Right click 'My Computer'
2. Click on 'Manage'
3. Open up 'Services and Applications'
4. Click on 'Services'
5. Find your service in the list and right-click on it
6. Click on 'Start'

Once it has started, you can go into Visual Studio, click on 'Debug', then click on 'Attach to Process'.

Another technique is to add this line to your OnStart() method in the service:

System.Diagnostics.Debugger.Launch(); 

When you do that, it'll prompt you to pick an instance of Visual Studio to debug the service in.